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2 years ago

PLEASE HELLPPPPPPP!!!!!!

Mathematics

2 answers:

pochemuha2 years ago

8 0

Company A would because it is the least with the lowest slope since it is not increasing very fast

Andru [333]2 years ago

3 0

The answer is Company A

This is because although the cost starts high, its raises very slowly. By 800 students both other companies cost way more than A. Using this information, it is safe to assume that company A will still remain the cheapest past 800 students.

I hope this helped. Have a great night.

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A genetic experiment with peas resulted in one sample of offspring that consisted of 438 green peas and 173 yellow peas.

Andre45 [30]

Answer:

The 95% confidence interval is $0.2474 < p < 0.3188$

The result obtained does not contradict expectation

Step-by-step explanation:

From the question we are told that

The number of green peas is k = 438

The number of yellow peas is u = 173

Generally the sample size is mathematically represented as

$n = k + u$

=> $n = 438 + 173$

=> $n = 611$

Generally the sample proportion for yellow peas is

$\^ p = \frac{u}{n}$

=> $\^ p = \frac{173}{611 }$

=> $\^ p = 0.2831$

From the question we are told the confidence level is 95% , hence the level of significance is

$\alpha = (100 - 95 ) \%$

=> $\alpha = 0.05$

Generally from the normal distribution table the critical value of $\frac{\alpha }{2}$ is

$Z_{\frac{\alpha }{2} } = 1.96$

Generally the margin of error is mathematically represented as

$E = Z_{\frac{\alpha }{2} } * \sqrt{\frac{\^ p (1- \^ p)}{n} }$

=> $E = 1.96 * \sqrt{\frac{ 0.2831 (1- 0.2831)}{611} }$

=> $E = 0.0357$

Generally 95% confidence interval is mathematically represented as

$\^ p -E < p < \^ p +E$

=> $0.2831 -0.0357$

=> $0.2474 < p < 0.3188$

From the question we are told that it was expected that 25% of the offspring peas will be yellow

Now from the 95% confidence interval obtained we see that the expected sample proportion(25% ) falls within it so it means that the result obtained does not contradict expectation

7 0

2 years ago

Please help me, if you help then thanks!

vredina [299]

The formula for volume always involves three dimensions.

In this case, the volume of a cube is $V=s^3$ , where $s$ is the side length of the cube.